In an interview with the village of Guihe, the reporter saw that Master Dong was watering the celery seedlings. During the conversation, it was learned that the celery seedlings of Master Dong last year caused many diseases due to high temperature and rain, some rot, some necrosis of heart and leaves, and they were forced to make up enough seedlings everywhere. This year, Master Dong strengthened the management of the seedling stage. At present, the celery seedlings grow well. How is Master Dong managing? What are the good experiences? The reporter conducted a summary. First, take more measures and promote celery 1. Cool down. Celery is a kind of cold crop, the optimum temperature for emergence is 15-20 °C, and the temperature of the seedbed should not exceed 25 °C. However, after entering the summer, the outside temperature is usually above 30 °C, which is not conducive to the emergence of celery. Therefore, when the temperature is too high, the vegetable farmers should take measures such as sunshade and water spray. Master Dong also said that the celery seedbed should pay attention to the small water and water, keep the seedbed moist, and the lower temperature well water is also beneficial to reduce the temperature of the seedbed and create a suitable growth environment for the celery seedlings. 2. Miao Miao. Master Dong introduced that many vegetable farmers are no longer seedlings in order to save trouble. In some places, the density of celery seedlings is too large, and a large number of weak seedlings and seedlings appear, and the density is large. The permeability between the plants is poor, and it is easy to infect diseases and dead seedlings, so the seedlings are still very important. When the celery seedlings grow to a true leaf, the dense seedlings, diseased seedlings, and weak seedlings are removed, and the seedling distance is adjusted to 2-3 cm. The inter-plant seedlings are used to remove the weeds in the field to improve the growth environment of the celery seedlings and promote the growth of the seedlings. 3. Anti-mite. There are many rains in summer, and there are often heavy rains coming. The poorly drained plots are seriously watery and prone to stagnation. The roots of celery seedlings are weak, and drainage and flood control should be done well. Drainage ditch should be built near the seedbed to ensure that the accumulated water can be discharged in time after rainfall. Second, timely prevention of pests and diseases 1. Recognize the disease in a timely manner. It is hot and rainy in summer, the humidity of the seedbed is high, and the temperature is high, which is easy to infect a variety of diseases, such as squatting disease and soft rot. Soft rot is a kind of bacterial disease. The diseased seedlings are rotten and smelly. When the humidity is high, the disease is heavy and spreads rapidly. Therefore, the vegetable farmers should prevent and control in the early stage. If there is continuous rain, the protective agent should be sprayed in time. Pay attention to the observation of the seedlings, if the disease should be sprayed in time, you can use 72% agricultural streptomycin 3000 times, 3% carbendazim 1000 times, 33.5% quinoline copper 800 times and other chemicals. A sickle disease is a disease caused by a fungus, often causing a large area of ​​dead trees. High temperature and rainy weather are conducive to the spread of diseases. It is recommended that the vegetable farmers spray the medicine in time after the emergence of the seedlings and after the rainy days. It can be sprayed with 75% of the chlorothalonil 600 times, the fine nail cream, the manganese zinc and 1000 times. In addition, it is necessary to pay attention to the addition of trace elements such as boron and calcium in advance to avoid the occurrence of physiological diseases such as rotten stems and heartburn. 2. Pest control The pests that harm celery in summer are mainly cabbage caterpillars, aphids, leaf miners, etc., which can be covered with insect-proof nets to reduce the invasion of pests, and at the same time, for the control of different pests, such as imidacloprid, avermectin, and chlorfenapyr, Prevent the occurrence of pests. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
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Management of celery seedling
The celery seedling period is in a hot and rainy season. If it is not properly managed, it is easy to develop seedlings and dead seedlings. Last year, due to the rainy summer, a large number of celery seedlings rotted and died, and celery seedlings were in short supply. Many vegetable farmers were buying celery seedlings everywhere. What problems should be paid attention to in the management of celery seedling? Recently, the reporter went to Guihe Village, Datian Town, Shouguang City to learn about the seedling situation of local vegetable farmers.